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File:N&AMOV - Schoolroom - Impulsion.png

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N&AMOV_-_Schoolroom_-_Impulsion.png (468 × 440 pixels, file size: 386 KB, MIME type: image/png)

Summary

Description
English: MECHANICAL VENTILATION ON THE DOWNDRAUGHT SYSTEM, BY IMPULSION, OR THE 'PLENUM' PRINCIPLE, APPLIED TO SCHOOLROOMS.
  • A Roof Ventilator.
  • B Main Upcast Shaft.
  • C Horizontal Foul Air Trunk.
  • DD Connecting Pipes from Foul Air Flues.
  • EE Foul Air Flues.
  • FF Foul Air Exits into Flues EE.
  • GG Fresh Air Supply Flues through which the air is mechanically projected at a high velocity up on to the ceiling and then descends, escaping at Exits FF into Flues EE.

N.B. The fresh air supply heated to such a temperature, as is necessary to effectually warm a building, is thereby seriously deteriorated for breathing purposes, therefore to secure healthy ventilation the heating of a building should always be separate and distinct from that of the air supply.

  • BLUE Fresh air supply.
  • YELLOW Products of combustion.
  • BROWN Products of respiration.
  • RED Products of respiration from infected scholars.
Date
Source Natural & Artificial Methods of Ventilation
Author Robert Boyle & Sons

Licensing

Public domain
Public domain
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
United States
United States
This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

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Date/TimeThumbnailDimensionsUserComment
current18:13, 22 October 2023Thumbnail for version as of 18:13, 22 October 2023468 × 440 (386 KB)HohumReworked from original.
15:14, 14 March 2011Thumbnail for version as of 15:14, 14 March 2011468 × 440 (87 KB)Ktulu789Reduced yellowish look. Now references look fine. Older red and brown seemed equal.
01:42, 3 June 2008Thumbnail for version as of 01:42, 3 June 2008468 × 440 (358 KB)T. Mazzei{{Information |Description={{en|1=MECHANICAL VENTILATION ON THE DOWNDRAUGHT SYSTEM, BY IMPULSION, OR THE 'PLENUM' PRINCIPLE, APPLIED TO SCHOOLROOMS.}} |Source=Natural & Artificial Methods of Ventilation |Author=Robert Boyle & Sons |Date=1899 |Permission=

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